Charlie Puth first shared “That’s Hilarious” on his TikTok on October 12, 2021 while in the studio, showing the production of the song.

On February 14, 2022 after finishing the song, Charlie shared in his TikTok:

When I listen to it, it brings me back to the hardest time in my life when I couldn’t let somebody go. It makes me sad, which I never am on here, but I hope you love it. Don’t give your heart to someone who’s still got a broken one.

On March 23, 2022, Charlie announced on TikTok “That’s Hilarious” being the second single off his third-studio album, Charlie. In his TikTok, Charlie expressed through tears,

I’m really excited for the song to come out but, you know, every time I hear it, I’m kind of brought back to a time that was really, really challenging in my life.